Nex-AC - Anticheat system

Nex Anticheat (Nex-AC) - is a comprehensive protection which combines powerful anticheat and protection against various attacks (flood, DoS).
Anticheat detects popular cheats instantly punishing cheaters.
Anti-DoS combines customizable anti-flood, anti-DoS at network level and a lot of protection tools against hacking, crashers etc.

List of basic anti-cheats:

Anti-AirBreak (onfoot/in vehicle)
Anti-teleport hack (onfoot/into/in/between vehicles)
Anti-teleport (pickups)
Anti-FlyHack (onfoot/in vehicle)
Anti-SpeedHack (onfoot/in vehicle)
Anti-Health hack (onfoot/in vehicle) and armour hack
Anti-Weapon hack and (add/infinite) ammo hack
Anti-Special actions hack (including jetpack)
Anti-GodMode from bullets (onfoot/in vehicle)
Anti-Invisible hack
Anti-Money hack
Anti-Tuning hack
Anti-lagcomp-spoof
Anti-Parkour mod
Anti-Quick turn
Anti-Rapid fire
Anti-FakeSpawn
Anti-FakeKill
Anti-Pro Aim
Anti-CJ run
Anti-CarShot
Anti-CarJack
Anti-UnFreeze
Anti-AFK Ghost
Anti-Reconnect
Anti-High ping
Anti-Fake NPC
Anti-Dialog hack
Protection from sandbox
Protection from invalid version
Protection from flood by seat changing
Protection from connection flood in one slot
Anti-Rcon hack (brute/brute-force)
Anti-callback functions flood (complete list below)
Anti-crashers (complete list below)
Anti-NOPs (complete list below)
Anti-DoS

Additional features:

Setting anticheat from file
The settings is located in a separate file (scriptfiles\nex-ac_settings.cfg)
Statistics viewing
Ability to view statistics of the anticheat for all the time of server work since its launch
Displayed automatically when the server turns off. Stored in a server log (server_log.txt)
Logging the most important actions
Optionally, you can enable debug-mode for logging all actions
Multilingual
Ability to set any of the available languages
It also simplifies the process of translation of anticheat into other languages

List of publics which are protected by anti-flood:

OnDialogResponse
OnEnterExitModShop
OnPlayerClickMap
OnPlayerClickPlayer
OnPlayerClickTextDraw
OnPlayerCommandText
OnPlayerEnterVehicle
OnPlayerExitVehicle
OnPlayerPickUpPickup
OnPlayerRequestClass
OnPlayerSelectedMenuRow
OnPlayerStateChange
OnVehicleMod
OnVehiclePaintjob
OnVehicleRespray
OnVehicleDeath
OnPlayerText
OnPlayerEnterCheckpoint
OnPlayerLeaveCheckpoint
OnPlayerRequestSpawn
OnPlayerExitedMenu
OnPlayerEnterRaceCheckpoint
OnPlayerLeaveRaceCheckpoint
OnPlayerClickPlayerTextDraw
OnVehicleDamageStatusUpdate
OnPlayerSelectObject

Anti-NOPs:

SpawnPlayer
SetPlayerPos
SetVehiclePos
SetPlayerAmmo
SetPlayerHealth
SetPlayerArmour
SetVehicleHealth
GivePlayerWeapon
SetPlayerPosFindZ
SetPlayerInterior
PutPlayerInVehicle
ResetPlayerWeapons
SetPlayerSpecialAction
TogglePlayerSpectating
RemovePlayerFromVehicle

Anti-Crashers:

Invalid tuning
Invalid vehicle seat
Illegal characters in the dialogs (deleting)
Invalid attached objects
Weapon Crasher

Functions:

public OnCheatDetected(playerid, ip_address[], type, code)

Called when triggers one of the anti-cheats

playerid - The ID of the cheater

ip_address[] - IP-address of the cheater

type - Type of cheating (when 0 it returns the ID, when 1 - IP)

code - The code (ID) of the anti-cheat

This callback does not handle returns

EnableAntiCheat(code, enable)

Use to enable/disable one of the anti-cheats

code - The ID of the anti-cheat

enable - 1 to enable/0 to disable

Returns 1 (true) if the function executed successfully or 0 (false) if the code parameter contains an invalid ID of the anti-cheat

EnableAntiCheatForPlayer(playerid, code, enable)

Use to enable/disable one of the anti-cheats for a specific player

playerid - The ID of the player to enable/disable the anti-cheat for

code - The ID of the anti-cheat

enable - 1 to enable/0 to disable

Returns 1 if the function executed successfully, 0 if the player is not connected or -1 if the code parameter contains an invalid ID of the anti-cheat

Added in v1.3:

IsAntiCheatEnabled(code)

Use to check whether one of the anti-cheats is enabled/disabled

code - The ID of the anti-cheat to check

Return 1 (true) if enabled or 0 (false) if disabled

IsAntiCheatEnabledForPlayer(playerid, code)

Use to check whether one of the anti-cheats is enabled/disabled for a specific player

playerid - The ID of the player to be checked whether the anti-cheat is enabled/disabled for him

code - The ID of the anti-cheat to check

Return 1 (true) if enabled or 0 (false) if disabled

Added in v1.8.8:

AntiCheatGetHealth(playerid, &Float:health)

Use to get the amount of the player's health (according to anticheat data)

playerid - The ID of the player to get the health of

&Float:health - A variable to store the health in, passed by reference

Returns 1 (true) if the function executed successfully or 0 (false) if the player is not connected

AntiCheatGetArmour(playerid, &Float:armour)

Use to get the amount of the player's armour (according to anticheat data)

playerid - The ID of the player to get the armour of

&Float:armour - A variable to store the armour in, passed by reference

Returns 1 (true) if the function executed successfully or 0 (false) if the player is not connected

AntiCheatGetVehicleHealth(vehicleid, &Float:health)

Use to get the amount of the vehicle's health (according to anticheat data)

vehicleid - The ID of the vehicle to get the health of

&Float:health - A variable to store the health in, passed by reference

Returns 1 (true) if the function executed successfully or 0 (false) if the vehicle does not exist

AntiCheatGetWeaponData(playerid, slot, &weapons, &ammo)

Use to get the weapon and ammo in a specific player's weapon slot (according to anticheat data)

playerid - The ID of the player whose weapon data to retrieve

slot - The slot to get the weapon and ammo for

&weapons - A variable to store the weapon ID in, passed by reference

&ammo - A variable to store the ammo in, passed by reference

Returns 1 if the function executed successfully, 0 if the player is not connected or -1 if the slot specified is invalid

AntiCheatGetSpawnWeapon(playerid, &weapon1, &weapon1_ammo, &weapon2, &weapon2_ammo, &weapon3, &weapon3_ammo)

Use to get the spawn weapons and ammo of a player

playerid - The ID of the player whose spawn weapons and ammo to retrieve

&weapon1 - A variable in which to store weapon 1, passed by reference

&weapon1_ammo - A variable in which to store the amount of ammo for weapon 1, passed by reference

&weapon2 - A variable in which to store weapon 2, passed by reference

&weapon2_ammo - A variable in which to store the amount of ammo for weapon 2, passed by reference

&weapon3 - A variable in which to store weapon 3, passed by reference

&weapon3_ammo - A variable in which to store the amount of ammo for weapon 3, passed by reference

Returns 1 (true) if the function executed successfully or 0 (false) if the player is not connected

AntiCheatGetPos(playerid, &Float:x, &Float:y, &Float:z)

Use to get the position of a player (according to anticheat data)

playerid - The ID of the player to get the position of

&Float:x - A variable to store the x coordinate in, passed by reference

&Float:y - A variable to store the y coordinate in, passed by reference

&Float:z - A variable to store the z coordinate in, passed by reference

Returns 1 (true) if the function executed successfully or 0 (false) if the player is not connected

AntiCheatGetVehicleVelocity(vehicleid, &Float:x, &Float:y, &Float:z)

Use to get the velocity of a vehicle (according to anticheat data)

vehicleid - The ID of the vehicle to get the velocity of

&Float:x - A variable to store the x velocity in, passed by reference

&Float:y - A variable to store the y velocity in, passed by reference

&Float:z - A variable to store the z velocity in, passed by reference

Returns 1 (true) if the function executed successfully or 0 (false) if the vehicle does not exist

AntiCheatGetSpeed(playerid)

Use to get the speed of a player

playerid - The ID of the player to get the speed of

Returns the player's speed or 0 if the player is not connected

AntiCheatGetAnimationIndex(playerid)

Use to get the index (ID) of the player's current animation (according to anticheat data)

playerid - The ID of the player to get the animation index of

Returns the ID of the animation or 0 if the player is not connected

AntiCheatGetDialog(playerid)

Use to get the ID of the opened dialog for a player

playerid - The ID of the player to get the active dialog ID for

Returns the ID of the dialog or -1 if the player is not connected

AntiCheatGetEnterVehicle(playerid)

Use to get the ID of the vehicle a player attempted to enter last time

playerid - The ID of the player to get the last entered vehicle ID of

Returns the ID of the entered vehicle or 0 if the player is not connected

AntiCheatGetVehicleID(playerid)

Use to get the ID of the vehicle a player is currently in (according to anticheat data)

playerid - The ID of the player in the vehicle to get the ID of

Returns the ID of the vehicle or 0 if the player is not connected

AntiCheatGetWeapon(playerid)

Use to get the ID of the player's current weapon (according to anticheat data)

playerid - The ID of the player to get the currently held weapon of

Returns the ID of the weapon or -1 if the player is not connected

AntiCheatGetVehicleSeat(playerid)

Use to get the seat of the vehicle a player is currently in (according to anticheat data)

playerid - The ID of the player to get the seat of

Returns the ID of the seat or -1 if the player is not connected

AntiCheatGetSpecialAction(playerid)

Use to get the ID of the player's special action (according to anticheat data)

playerid - The ID of the player to get the special action of

Returns the ID of the special action or 0 if the player is not connected

AntiCheatGetLastSpecialAction(playerid)

Use to get the ID of the player's previous special action

playerid - The ID of the player to get the previous special action of

Returns the ID of the previous special action or 0 if the player is not connected

AntiCheatGetLastShotWeapon(playerid)

Use to get the ID of the last weapon a player shot from

playerid - The ID of the player to get the last shot weapon ID of

Returns the ID of the last shot weapon or -1 if the player is not connected

AntiCheatGetLastPickup(playerid)

Use to get the ID of the last pickup which a player picked up

playerid - The ID of the player to get the last picked up pickup ID of

Returns the ID of the last picked up pickup or -1 if the player is not connected

AntiCheatGetLastUpdateTime(playerid)

Use to get the player's last update tick

playerid - The ID of the player to get the last update tick of

Returns the tick of the last update or 0 if the player is not connected

AntiCheatGetLastReloadTime(playerid)

Use to get the player's last weapon reload tick

playerid - The ID of the player to get the last reload tick of

Returns the tick of the last reload or 0 if the player is not connected

AntiCheatGetLastEnteredVehTime(playerid)

Use to get the player's last entering vehicle attempt tick

playerid - The ID of the player to get the last entering vehicle attempt tick of

Returns the tick of the last entering attempt or 0 if the player is not connected

AntiCheatGetLastShotTime(playerid)

Use to get the player's last weapon shot tick

playerid - The ID of the player to get the last shot tick of

Returns the tick of the last shot or 0 if the player is not connected

AntiCheatGetLastSpawnTime(playerid)

Use to get the player's last spawn tick

playerid - The ID of the player to get the last spawn tick of

Returns the tick of the last spawn or 0 if the player is not connected

AntiCheatIntEnterExitsIsEnabled(playerid)

Use to check whether the enter/exit markers in interiors are enabled/disabled for a player

playerid - The ID of the player to check

Returns 1 (true) if enabled or 0 (false) if disabled

AntiCheatStuntBonusIsEnabled(playerid)

Use to check whether stunt bonus is enabled/disabled for a player

playerid - The ID of the player to check

Returns 1 (true) if enabled or 0 (false) if disabled

AntiCheatIsInModShop(playerid)

Use to check whether a player is in ModShop or not

playerid - The ID of the player to check

Returns 1 (true) if it is or 0 (false) if it is not

AntiCheatIsFrozen(playerid)

Use to check whether a player is frozen or not

playerid - The ID of the player to check

Returns 1 (true) if frozen or 0 (false) if not frozen

AntiCheatIsDead(playerid)

Use to check whether a player is dead or not

playerid - The ID of the player to check

Returns 1 (true) if dead or 0 (false) if not dead

AntiCheatIsConnected(playerid)

Use to check whether a player is on the server or not

playerid - The ID of the player to check

Returns 1 (true) if it is or 0 (false) if it is not

Added in v1.9.37:

public OnCheatWarning(playerid, ip_address[], type, code, code2, count)

Called when triggers any warnings of one of the anti-cheats

playerid - The ID of the suspected cheater

ip_address[] - IP-address of the suspected cheater

type - Type of cheating (when 0 it returns the ID, when 1 - IP)

code - The code (ID) of the anti-cheat

code2 - The subcode (ID) of the anti-cheat check

count - Count of warnings triggered on suspected cheater

This callback does not handle returns

public OnFloodWarning(playerid, publicid, count)

Called when triggers any anti-flood warnings on one of the protected publics

playerid - The ID of the suspected flooder

publicid - The ID of the public that was called too quickly

count - Count of warnings triggered on suspected flooder

This callback does not handle returns

public OnNOPWarning(playerid, nopid, count)

Called when triggers any NOP warnings on one of the protected functions

playerid - The ID of the suspected cheater

nopid - The ID of the NOP check

count - Count of warnings triggered on suspected cheater

This callback does not handle returns

AntiCheatKickWithDesync(playerid, code)

Use to kick with desync a specific player by the anticheat

playerid - The ID of the player who will be kicked with desync for the delay time

code - The ID of the anti-cheat (with some codes the player's vehicle will be resynced after his disconnection)

Returns 1 if the function executed successfully, 0 if the player is not connected or -1 if the player has already been kicked

AntiCheatIsKickedWithDesync(playerid)

Use to check whether a player is (being) kicked or not

playerid - The ID of the player to check

Returns 1 for kick onfoot, 2 for kick in a vehicle (driver), 3 if player is already disconnected or 0 if he isn't kicked

Added in v1.9.40:

AntiCheatGetSpawnPos(playerid, &Float:x, &Float:y, &Float:z)

Use to get the spawn position of a player

playerid - The ID of the player to get the spawn position of

&Float:x - A variable to store the x coordinate in, passed by reference

&Float:y - A variable to store the y coordinate in, passed by reference

&Float:z - A variable to store the z coordinate in, passed by reference

Returns 1 (true) if the function executed successfully or 0 (false) if the player is not connected

Added in v1.9.41:

EnableAntiNOP(nopcode, enable)

Use to enable/disable one of the anti-NOPs

nopcode - The ID of the anti-NOP

enable - 1 to enable/0 to disable

Returns 1 (true) if the function executed successfully or 0 (false) if the nopcode parameter contains an invalid ID of the anti-NOP

EnableAntiNOPForPlayer(playerid, nopcode, enable)

Use to enable/disable one of the anti-NOPs for a specific player

playerid - The ID of the player to enable/disable the anti-NOP for

nopcode - The ID of the anti-NOP

enable - 1 to enable/0 to disable

Returns 1 if the function executed successfully, 0 if the player is not connected or -1 if the nopcode parameter contains an invalid ID of the anti-NOP

IsAntiNOPEnabled(nopcode)

Use to check whether one of the anti-NOPs is enabled/disabled

nopcode - The ID of the anti-NOP to check

Return 1 (true) if enabled or 0 (false) if disabled

IsAntiNOPEnabledForPlayer(playerid, nopcode)

Use to check whether one of the anti-NOPs is enabled/disabled for a specific player

playerid - The ID of the player to be checked whether the anti-NOP is enabled/disabled for him

nopcode - The ID of the anti-NOP to check

Return 1 (true) if enabled or 0 (false) if disabled

Added in v1.9.42:

AntiCheatGetVehicleDriver(vehicleid)

Use to get the ID of the driver of a vehicle

vehicleid - The ID of the vehicle to get the driver ID of

Returns the ID of the driver or INVALID_PLAYER_ID if the vehicle does not exist

AntiCheatGetVehicleInterior(vehicleid)

Use to get the ID of the current interior of a vehicle

vehicleid - The ID of the vehicle to get the interior ID of

Returns the ID of the interior or 0 if the vehicle does not exist

AntiCheatGetVehiclePaintjob(vehicleid)

Use to get the ID of the paintjob of a vehicle

vehicleid - The ID of the vehicle to get the paintjob ID of

Returns the ID of the paintjob or 3 if the vehicle does not exist

Added in v1.9.43:

AntiCheatGetVehiclePos(vehicleid, &Float:x, &Float:y, &Float:z)

Use to get the position of a vehicle (according to anticheat data)

vehicleid - The ID of the vehicle to get the position of

&Float:x - A variable to store the x coordinate in, passed by reference

&Float:y - A variable to store the y coordinate in, passed by reference

&Float:z - A variable to store the z coordinate in, passed by reference

Returns 1 (true) if the function executed successfully or 0 (false) if the vehicle does not exist

AntiCheatGetVehicleZAngle(vehicleid, &Float:z_angle)

Use to get the z rotation of a vehicle (according to anticheat data)

vehicleid - The ID of the vehicle to get the z rotation of

&Float:z_angle - A variable to store the z rotation in, passed by reference

Returns 1 (true) if the function executed successfully or 0 (false) if the vehicle does not exist

AntiCheatGetVehicleSpawnPos(vehicleid, &Float:x, &Float:y, &Float:z)

Use to get the spawn position of a vehicle

vehicleid - The ID of the vehicle to get the spawn position of

&Float:x - A variable to store the x coordinate in, passed by reference

&Float:y - A variable to store the y coordinate in, passed by reference

&Float:z - A variable to store the z coordinate in, passed by reference

Returns 1 (true) if the function executed successfully or 0 (false) if the vehicle does not exist

AntiCheatGetVehicleSpawnZAngle(vehicleid, &Float:z_angle)

Use to get the spawn z rotation of a vehicle

vehicleid - The ID of the vehicle to get the spawn z rotation of

&Float:z_angle - A variable to store the z rotation in, passed by reference

Returns 1 (true) if the function executed successfully or 0 (false) if the vehicle does not exist

Added in v1.9.46:

AntiCheatGetInterior(playerid)

Use to get the ID of the interior a player is currently in (according to anticheat data)

playerid - The ID of the player to get the interior ID of

Returns the ID of the interior or 0 if the player is not connected

Added in v1.9.50:

AntiCheatGetEnterVehicleSeat(playerid)

Use to get the seat of the vehicle a player attempted to enter last time

playerid - The ID of the player to get the last entered seat of

Returns the ID of the entered seat or -1 if the player is not connected

AntiCheatGetWeaponInSlot(playerid, slot)

Use to get the weapon ID in a specific player's weapon slot (according to anticheat data)

playerid - The ID of the player to get the weapon ID of

slot - The slot to get the weapon ID for

Returns the ID of weapon in a specific slot, -1 if the player is not connected or -2 if the slot specified is invalid

AntiCheatGetAmmoInSlot(playerid, slot)

Use to get the ammo in a specific player's weapon slot (according to anticheat data)

playerid - The ID of the player to get the ammo of

slot - The slot to get the ammo for

Returns the amount of ammo in a specific slot, -1 if the player is not connected or -2 if the slot specified is invalid

AntiCheatIsInSpectate(playerid)

Use to check whether a player is in spectator mode or not

playerid - The ID of the player to check

Returns 1 (true) if it is or 0 (false) if it is not

AntiCheatGetVehicleSpeed(vehicleid)

Use to get the speed of a vehicle

vehicleid - The ID of the vehicle to get the speed of

Returns the vehicle speed or 0 if the vehicle does not exist

AntiCheatIsVehicleSpawned(vehicleid)

Use to check whether a vehicle is spawned or not

vehicleid - The ID of the vehicle to check

Returns 1 (true) if it is or 0 (false) if it is not

Added in v1.9.53:

AntiCheatGetPickupPos(pickupid, &Float:x, &Float:y, &Float:z)

Use to get the position of a pickup

pickupid - The ID of the pickup to get the position of

&Float:x - A variable to store the x coordinate in, passed by reference

&Float:y - A variable to store the y coordinate in, passed by reference

&Float:z - A variable to store the z coordinate in, passed by reference

Returns 1 (true) if the function executed successfully or 0 (false) if the pickup does not exist

Example of setting OnCheatDetected in your gamemode

Multilingual:

The script can be configured in any of the available languages. To do it, just download the desired localization, save it in a directory with the main include (nex_ac.inc) and recompile your script.

.lang files can be opened even in default notepad and easily edited

Did not find your language? Help the project :)
If you know well a language that is not in the "lang" folder, please translate anticheat into this language. To do this, just send the translated .lang file via Pull Request.
I will be very glad of your help and add you in the list of those who helped the development of the anticheat.

Installation:

Download latest anticheat version from the repo
Download the language file (.lang) in your preferred language
Copy both files to a folder "/pawno/include" which is located in a folder with the server
In your gamemode, after #include <a_samp> write the following:

#define DEBUG
#include <nex-ac_en.lang> //or any other
#include <nex-ac>

In all filterscripts, after #include <a_samp> write the following:

#include <nex-ac>

Compile the modified scripts

Warnings:

Check for using any other anticheats in order to avoid conflicts with them
If you use Streamer Plugin by Incognito, Pawn.RakNet, foreach, sscanf, YSF or SKY, include it before nex-ac
Also keep in mind that filterscript must have "#define FILTERSCRIPT" before including the anticheat

Thanks:

f0Re3t, Vitalik_Gonsor, Magic_York, Roberto_York, TheHero, Nike_33, Mix_Rargard, Unisheld - testing
ZiGGi, Urukhay, Yashas, theYiin, RaefaldhiAmartya, PatchwerkQWER, kvann, rt-2 - advices on the code
Carper - German translation
Jstylezzz - Dutch translation
J4Rr3x, Sasino97 - Italian translation
Alex Westbrook, JustBored, Frenzoid - Spanish translation
lashona, ArthourP, DAKYSKYE - Georgian translation
wampiros6 - Polish translation
DeitY, Dragony92 - Serbian translation
NicK_ - Brazilian Portuguese translation
KyleSmith, infin1tyy - Improved English translation
M4D - Persian (Farsi) Translation
Valera_Kovshikov - Ukrainian translation
RaefaldhiAmartya - Indonesian translation
vannesenn - Croatian translation
j3rry, vic1997 - French translation
zaibaslr2 - Lithuanian translation
UnforgiveNNN - Romanian translation
Pedro. - Hungarian translation
Ben_Lovejoy - Finnish translation
Rengar - Latvian translation
bgedition - Bulgarian translation
Jensenn - Turkish translation
Sanady - Slovak translation
Grig - Armenian translation
SooBad - Czech translation
OldPawn - Estonian translation
Negativ_Tm - Turkmen translation
Trung.Tin - Vietnamese translation
willbedie - Albanian translation
aktah - Thai translation
Michael.Richmond - Moldavian translation
NemanjaMAX - Bosnian translation
TTG - simplified Chinese translation
Abraar - Hindi translation

This script also contains materials from third-party open source projects.

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